Improvement in metallic cartridges



H KELLOGG.

Cartridge:

r Patented July 15, 1862.

UNITED STATES PATENT OFFICE,

HENRY KELLOGG, OF INEW HAVEN, CONNECTICUT.

IMPROVEMENT IN METALLIC CARTRIDGES.

Specification forming part of Letters Patent N 0. 35,878, dated July 15,1862.

To all whom it may concern Be it known that I, HENRY KELLOGG, of thecity and county of New Haven, in the State of Connecticut, have inventeda new and useful Improvement in Cartridges for Fire-Arms; and I dohereby declare that the following is a full and exact description of theconstruction and operation of the same, reference being had to theaccompanying drawings, making a part of this specification, in which-Figures 1 and 2 are complete cartridges of different forms. Figs. 4 and5 are sectional views. Figs. 5 and 6 illustrate the operation of thesame.

The nature of my invention consists in producing a water-proof metalliccartridge having a projection from the rear so formed from, or being apart of, the cartridge-case that when removed, as by cutting orotherwise, either at or before the instant of discharge, shall leave anopening through which to receive the flame from the detonating-cap orother known contrivance independent of the cartridge, to produce anexplosion of the powder within the cartridge-case, and thus preservingthe powder from the atmosphere and the deleterious and dangerous effectsof the fulminates usually used within the cartridge-case; also, incoating the interior surface of the cartridgecase with a solution ofgun-cotton in sulphuric ether, or its equivalent, for the purpose ofpreventing corrosion of the metal, or other deleterious effects arisingfrom the chemical action of the powder in contact with the metal, andalso for the purpose of more certain ignition of the entire quantity ofpowder contained in the cartridge-case.

I construct my cartridge-case A of a cylinder of copper or other metal,having one end B closed, either so as to form a rim, 0, Fig. 1, toprevent the escape of gas, or without, as

in Fig. 2. From the closed or rear end B, 1

make a projection, d, of such form, Fig. 3,

that, when removed by cutting or otherwise,

and to preserve the powder from the atmosphere. And for the furtherpreservation of the powder, as well as to protect the metal of thecase'from the chemical action produced by contact with the powder, andat the same time to attain greater certainty of ignition of the entirequantity of powder contained in the cartridge, I coat the interiorsurface of my cartridge-case with a solution of gum-cotton in sulphuricether, or its equivalent, to produce the same results.

To enable others skilled in the use of car tridges similar in form touse my own, I will proceed to describe the operation, and forconvenience of illustration I employ the arm known as Sharps Rifle.

Open the breech of the gun, as shown in Fig. 5,.by dropping the leverI); insert the cartridge 0; close the breech by raising the lever D, inwhich act the cutter f, attached to the slide E, will, in its upwardpassage, cut away the projection d and leave an opening, 0, Fig. 6,directly into the touch-hole of the gun, sufficiently to allow the freepassage of What Ido claim, and desire to secure by Letters Patent, is-

.Constructing a water-proof metallic cartridge, having the ball, powder,and case combined without fulminate or. percussion-powder, as hereindescribed, by making in the rear or closed end, and of one and the samepiece of the cartridge-case, a projecting nipple, said nipple to beremoved by cutting it away at or before the instant of discharge, in themanner and for the purpose substantially as herein set forth.

HENRY KELLO G G.

Witnesses I OBADIAH PEASE, JOHN E. EARLE.

